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qtdemux: rework segment event handling for adaptive streaming

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When a new time segment is received upstream is going to restart
with a new atom. Make the neededbytes and todrop variables
reflect that to avoid waiting too much or dropping the
initial bytes that contain the header.
This commit is contained in:
Thiago Santos 2015-07-08 15:02:24 -03:00
parent 38520a1e12
commit 30b3aa3030
1 changed files with 16 additions and 11 deletions
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27
gst/isomp4/qtdemux.c
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@ -2029,20 +2029,25 @@ gst_qtdemux_handle_sink_event (GstPad * sinkpad, GstObject * parent,
/* clear leftover in current segment, if any */
gst_adapter_clear (demux->adapter);
/* set up streaming thread */
gst_qtdemux_find_sample (demux, offset, TRUE, TRUE, &stream, &idx, NULL);
demux->offset = offset;
if (stream) {
demux->todrop = stream->samples[idx].offset - offset;
demux->neededbytes = demux->todrop + stream->samples[idx].size;
} else {
/* set up for EOS */
if (demux->upstream_format_is_time) {
demux->neededbytes = 16;
} else {
demux->neededbytes = -1;
}
if (demux->upstream_format_is_time) {
GST_DEBUG_OBJECT (demux, "Upstream is driving in time format, "
"set values to restart reading from a new atom");
demux->neededbytes = 16;
demux->todrop = 0;
} else {
gst_qtdemux_find_sample (demux, offset, TRUE, TRUE, &stream, &idx,
NULL);
if (stream) {
demux->todrop = stream->samples[idx].offset - offset;
demux->neededbytes = demux->todrop + stream->samples[idx].size;
} else {
/* set up for EOS */
demux->neededbytes = -1;
demux->todrop = 0;
}
}
exit:
gst_event_unref (event);